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Rock Grouting

Permeation grouting is an economical means to remediate existing and potential geological and foundation elements without causing major disruption to structures. The pressure grouting process consists of the direct pressure injection of a liquefied high strength grout into voids, cracks, fractures, cavities or between a bearing media and a structure, foundation and/or bearing walls.

For 30 years SDI has been advancing the methods used to pregrout mine shafts and today we are reaching depths of up to 1,000'. This kind of experience ensures SDI clients receive the most cost effective solutions for the most challenging subsurface problems.

Shaft Pregrouting

Fundamental to any underground development is the ability to control the subsurface strata in which the excavation will occur. With the majority of shaft developments requiring some type of pregrout program, SDI has developed pregrout procedures and techniques that maximize our subsurface efforts and help mitigate project risks.


Dam Foundation Grouting

This same technology has been utilized by SDI to construct grout curtains for numerous dam foundation grouting projects. Utilizing split spacing methods, SDI performs grout curtain installations with cement based grouts, micro-fine cements, and various forms of chemical grouts. Computer monitoring and evaluation of the grouting operation are also performed to ensure performance.

SDI's rock grouting services provide:

  • Ground stabilization for subsurface excavation and tunneling
  • Water seepage control for dams and shaft construction
  • Stream grouting to restore lost flows
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